Factories=good?
VERY!!
Although inside these factory walls hid hundreds of workers working harder than any of us ever will, these thousands of factories gave jobs to millions and gave them a means of survival. The unemployment rate dropped tremendously after factories started opening and hiring anyone that came through the front doors.
Rail Roads
The Gilded Age brought many more advances, like rail roads for instance.
Rail roads are extremely important, if you didn't already know; they are still used today for the transportation of materials. Their are rail roads all around the US, their isn't anywhere you can't go on a train now-a-days. But it wasn't always like this. It wasn't till the early 1900's that rail roads began to become bigger and stronger. By 1906 seven huge companies controlled approximately 2/3 of the rail road tracks set in the US. And along the years rail roads were set all around the US making it possible for anything to get anywhere someone desired.
Coal Mining
Coal mining became to be a bigger deal during the Industrial Revolution. Why? Because Coal was the primary source of energy for factories and transportation.